ANY AUTOCROSS RACERS
Sorry, I've been MIA with work and school and my Dart being done. I run the full Hotchkis setup (including leaf springs). They're decent springs, but IMO are a little too soft and allow for a lot of travel and sag with people/tools in the car. One of my friends competitively ran a '67 Valiant. It wasn't anything too special. 360 crate engine making 280 hp, 4 speed OD, full Hotchkis setup, 4-point cage, but he had 2-3 inch body flares allowing him to have 315/30/18's on all 4 corners. He had to add helper springs to his rear leafs because of body flex. He won that year and destroyed everyone. The most successful Mopars are A-bodies with with stock geometry (no tubular k-frames, coilovers, or 4-links) suspensions.
As for my racing input and the feel of the car, I haven't autocrossed the car much this past year as I've been finding issues here and there taking me away from autocross events and I suck as a driver (not enough experience). I've done 2-3 autocrosses and half a race day at Willow Springs.